<html lang="en" xmlns="http://www.w3.org/1999/html">
<head>
    <meta charset="UTF-8"><meta>
    <title>Title</title>
    <link rel="stylesheet" href="test.css" type="text/css" />
</head>
<body style="text-align:center;">
    <form action="/userinfo/selectOne" enctype="multipart/form-data" method="post">
        用户名<input type="text" id="username" name="username" placeholder="请输入账号"></br>
        密码：<input type="text" id="userpassword" name="userpassword" placeholder="请输入密码"></br>
        <input type="button" value="登录" id="landing" name="landing">
    </form>
</body>
</html>